Metal-working machine.



PATENTED MAR. 12, 1907.

P. M. STAMBAUGH.

METAL WORKING MACHINE.

APPLICATION FILED NOV.9,1905.

12 SHEETS-SHEET 2.

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No. 846,871. PATENTED MAR.12,1907. F. M. STAMBAUGH.

METAL WORKING MACHINE.

APPLICATION FILED NOV.9. 1906.

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12 SHEETS-SHEET 3.

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No. 846,871. P'ATENTED MAR. 12, 1907 P. M. STAMBAUGH.

METAL WORKING MACHINE.

APPLICATION FILED NOV. 9. 1905.

12 SHEETS-SHEET 4.

Witnesszs Francis Mfibambaugh No. 846,871. PATENTED MAR. 12, 1907.

F. M. STAMBAUGH. METAL WORKING, MACHINE.

APPLICATION FILED NOV-9. 1905.

12 SHEETS-SHEET 5.

m6 Eb Witnesses 1 I Inventor: Q.%m @a& F Pandas M. Stambaugh )w by fla/M maze PATENTED MAR. 12, 1907.

F. M. STAMBAUGH. METAL WORKING MACHINE. AIPPLIOATION' FILED NOV. 9. 1905.

Witnesses inventor:

Francis M. Shamloaqgh byfia/m ra /Me Athy 6.

No 846,871. PATENTED MAR. 12, 1907.

F. M. STAMBAUGH. METAL WORKING MACHINE. APPLIOATION FILED NOV. 9, 1905.

12 SHEETS-SHEET 7.

W 0 a0 P. wr mw HVQFQM .m fi .Qw. 0 n a Q 3 1a y b.

Witnassas Ogfm M%- Z,

No. 846,871. 'PATENTED MARflz, 1907. P. M. STAMBAUGH. METAL WORKING MACHINE.

APPLICATION FILED NOV. 9, 1905.

12 SHEETS-SHEET 8.

PATENTED MAR. 12, 1907.

F. M. STAMBAUGH. .METAL WORKING MACHINE.

APPLIOATION FILED NOV-9.1905.

12 SHEETS-SHEET 9.

in 6T1 BOP:

Witnesses F P671016, M. fitambaugh I bym/mya aw mys.

No. 846,871. PATENTED MAR. 12, 1907.

. P. M. STAMBAUGH.

METAL WORKING MACHINE.

APPLICATION FILED NOV. 9, 1905.

12 SHEETS-SHEET 10.

PATENTED MAR. 12, 1907.

F. M. STAMBAUGH. METAL WORKING MACHINE.

APPLICATION FILED NOV.9,1905.

12 SHEETS-SHEET 11.

a WJ 0N m .w s M QW. n mhb W 6 4 lr v I M .6 O n m y 1D 8 g Wihnes No. 846,871. PATENTED MAR. 12, 1907. F. M. STAMBAUGH. METAL WORKING MACHINE.

APPLICATION FILED NOV. 9, 1905.

12 SHEETS-SHEET l2.

Witnesses lnvenhov:

Cl. s"m w 1 Francis Nlfitambaugh f b WWMCLM y Att'y's.

UNITED STATES An'r more. I

FRANCIS M. 'STAMBAUGH, or ST. LoUIS, MISSOURI, ASSIGNOR TO'THE'AMERL' CAN BRAKE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

Specification of Letters Patent.

Application filed November 9. 1905. Serial No. 286,568.

'iVIETAL WORKINGI MACHINE.

IFatented- March 12, 1907,

To aZZ whom it may concern:

Be it known that I, FRANoIS M. STAM- BAU'GH, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Metalorking Machines, of which the following is a full, clear, and exact description, such-as will enable others, skilled in the art to which it appertain tomake and use the same, reference being had to the accompanying drawings, forming a part of this specification, in Which Figure 1 is a front elevation of a machine embodying the features of my invention. Fig. 2 is a top plan view of the machine shown in Fig. 1. Fig. 3 is-a detail elevation, partly in section, showing a portion of the mechanism for actuating the work-table. Fig. 4 is a horizontal sectional view taken on the line 4 4 of Fig. 8. Fig. 4 is a detail sectional view of one of the valve-casings. Fig. 4 is a detail sectional view of the spring-pressed plunger mounted in one of the tool-carrying slides for actuating the clutch-shifting lever. Fig. 5 is a detail elevation, partly in section, showing the mechanism for locking the worktable and the mechanism for actuating said table. Fig. 6 is a side elevation, partly in section, of the tool which first operates on the casting, showingthe mechanism for actuating the slide on which the tool is mounted, the slide being in its inward position. Fig. 7 is a vertical sectional view of the parts shown in Fig. 6. Fig. 8 is a detail view of the clutch mounted on'the end of the screwshaft; Fig. 9 is an end view of the parts shown .in Fig. 6 and shows in section the means for adjusting the cutters longitudinall of the shaft upon which they are mounte Fig. 10 is a side elevation of the tool which performs the second operation on the casting, the slide which carries said tool, and the mechanism for actuatingthe slide. 'Fig. 11'v is a transverse sectional view taken on the line 11 11 of l ig. 10. Fig. 12 is a side elevation of the drill and its operating mechanism. Fig. 12 is a detail sectional view of the aircontrollcd I iston comprising part of the mechanism or causing a reciprocating movement to be im arted to the drill, and Fig. 13

is a horizonta sectionalview on the line 13 13 of Fig. 12.

This invention relates tometal-working machines, and particularly to machines for an automatic machine having a movable v work-table for carrying castings or pieces of work' into position to be operated on progressively by tools located adjacent to said work-table.

ically into and out of position for operating upon the work, and in the preferred form of mfiy invention as herein shown the means for e ecting the movement of the tools into operative position comprises air-controlled apparatus.

The machine herein illustrated as em-- bodying my invention is provided with a set of tools for finishing a casting that is to be used as a piston for a slack-adjuster; but it should be understood that various other tools might be substituted for those shown and described without departing from the scope of my invention and, furthermore, that the number of tools located adjacent to the work-table could be varied.

Briefly stated, the machine comprises a work-table having means for supporting a number of castings, and located around the work-table are a plurality of milling-tools and a drilling-tool, which tools 0 crate progressively upon each casting. Tl e operator standing at the front of the machine removes the casting which has just been finished, places a rough casting'in osition, and then operates a lever which un ocks the work-table and also puts in operation air-controlled mechanism which causes the table to be moved one-quarter of a revolution. The last portion of the movement of the table just before it stops operates air-controlled apparatuswhich effects an endwise movement of a milling-tool that finishes two faces ofthe casting, said tool being thereafter returned automatically to its normal position. The operator again removes a finished casting from the work-table and inserts a rough one and operates the starting-lever, so that the table is caused to make another quarter ofa revolution, carrying the casting, which has just been operated on by the first millingtoolfinto position to be operated on byasec- 0nd milling-tool, which finishes two other faces of the eastin and'also the bifurcated end of the casting, sai tool also being moved auto- 7 60' The tools are movedautomatmatically into and out of, operative osition. At the next quarter-revolution of t e table the casting is brought into alinement with the drill, which is automatically moved into and out of position for boring a hole in the castin and the last quarter-revolution of the table hrings the finished casting into position to be removed by the operator.

Referring to the drawin s, 1 designates a base provided with a plurality of standards 2, 3, 4, and 5, which support the tools employed for operating upon the castings.

' being operated on.

7 nuts 9, as shown in Fig. 3, is a multiple beveled gear 10, having in its lower face teeth which cooperate with the gear 11 on the drive-shaft 12, mounted in the standard 5 and rovided with a pulley 13, that is driven by a elt, (not shown,) said shaft being driven continuously, so that the multiple gear will rotate continuously. I

The table is provided with four chucks, one of which is shown in section in Fi 6 and comprises a sleeve 14, having revolu ly mounted therein a chuck-block 15, into whichthe casting O-is screwed, the chuck-block being held in adjusted position in the sleeve by a setbolt, provided at its upper end witha handoperating wheel 16. 1

The standard 2 at the front of the machine carries a table 17, atwhich the operator stands when removing a finished casting from the chuck and placing an unfinished casting in position, and on the standard 3 at the lefthand side of the machine a tool-carrying slide 18 is reciprocatingly mounted, which slide is clearly shown in the enlarged detail viewsin Figs. 6, 7, and 9.

Fastened to the slide 18'and projecting downwardly into an opening in the standard 3 is a block 19, carrying an interiorly-screwthreadedsleeve or nut 20, adapted to receive the actuating screw shaft 21, vrotatably mounted in the standard 3 and having mounted loosely thereon a gear 22 and a worm-gear 23, provided with clutch-engaging faces. A clutch 24 issplined to said screw-shaft and is adapted to be moved longitudinally thereof into and out of engagement with the gear 22 a'ndworm-gear 23. The car 22 meshes with a pinion 240 on a stud-s aft 25, carried by the standard 3, and said pinion meshes with a gear 26, fastenedto the outer end of a horizontal shaft'27, mounted in bearings 28 on the standard and havin fastened to its inner end rod 50 s ing 36, projecting downwardly from the top plate, as shown in Fig. 6, said shaft having at its inner end a beveled gear 37 in meshwith acooperating beveled gear 38 on a shaft that i is rotatably mounted in a'bearing on the underneath side of the topplate and being provided with a beveled gear 40, that meshes with gear-teeth 41, formed on the upper face the tablesupporting shaft 7, as shown in dotted lines in Fig. 2. Accordingly; by

means of these various gears and inlons continuous movement is imparted to t e gear 22, loosely mounted on the screw-shaft 21.

Continuous rotative movement in'the direction op osite to that of the gear 22 1s impart- .ed to t e worm-gear23 by means of a worm 42, meshing therewith, which worm is car'- ried by a shaft 43, having a beveled-gear 44, that meshes with abeveled gear 45on the shaft 27. *For moving the clutch 24 into engagement with the worm-gear 23 to cause the tool-car. ryingslide to be-moved inwardly I have provided a lever 46, pivotally connected tothe ,75 of the multiple gear 10, loosely mounted on standard 3 and having a forked end provided with rollers 47, which enter a circular groove in the clutch. Said lever is actuated automatically at a predetermined time in the cycle of operations of the machine b means of apparatus operated by compresser air and consisting of a piston 48 in a cylinder 49, carried by the standard and having a pistonidingly that is 'adapte to engage the lever .46 and mounted in a plunger 51,

move it toward the left of the machine for throwing the clutch into engagement with the worm-gear. Interposed between the end of said iston-rod and the end of the reces's' in the p unger is a coiled spring 53, which effects a yielding movement 'of the lever 46,

accomodate itself to'the clutchengaging face of the worm-gear in case said faces do not reg- 'ister perfectly when the clutch is thrown in.

The piston is operated by means of'com-.

pressed air, that enters the cylinder through a pipe 54, connected to a valve-casing 55,

carried by the top plate, (shown in detail in Fig. 4 the air entering said valve-casing through a pipe 56, connected to a suitable source of supply of compressed air. If desired, the air can be furnished by a pump which is automatically actuated. A valvestem 57 projects above the end of the casing and normally occupies a positipn to be engaged by one of a plurality of lugs 58, carried by the rotating tablefas shown in Fig. 1

Consequently ass'aid table rotates the valvestem willbe depressed by one of the lugs at each quarter-revolution of the table to permit the compressed air to pass from the pipe 56 into the pipe. 54, therehyactuating t 1e machine.

piston to move the clutch into engagement with the Worm-gear 23 and cause the screwshaft to be rotated in a direction to move the slide 18 inwardly toward the center of the After the valve-stem has been actuated as described said stem is returned to normal position by means of a coiled spring 570, the valve 580 when in its normal position preventing the entrance of air into the pipe 54.

The tool which the slide 18 carries consists of two cutters 59, spaced apart'and carried by a shaft 60, rotatably mounted in split bearings 61 on the slide. The urpose of spacing the cutters apart is to enable each cutter to act upon one of the outer side faces of the casting and trim said faces down to a perfectly-smooth surface. The cutters 59 are splined to the shaft 60 and are spaced apart by a ring 62. Adjustably secured to .the shaft 60 is a collar 65, having its inner end bearing against one of the cutters 59 to provide a means for moving the cutter longitudinally of the shaft. The shaft has an integral collar 64, and mountedon said shaft is a wornrgear 69 that is clamped against said collar by a nut threaded on the end of the shaft, as shown in Fig. 9. Adjustably mounted in one of the split bearings 61 and bearing against the gear 69 is a bushing 63, which may be adjusted for moving the shaft longitudinally of its bearing for causing the gear thereon to register exactly with an acmating-worm, and at the other end of said bearing is a flanged bushing 66, which at its outer end bears against one of the cutters 59, the inner ends of said bushings being spaced apart. 4

The collar 65 is provided with a plurality of recesses, as shown in Fig. 9, and the split bearing is provided with a slot 610, through which an instrument may be inserted to engage one of the recesses in the sleeve 65 for turning it to move the cutter 59 longitudinally of the shaft into snug engagement with the spacing-ring 62. In operation the collar 65 rotates with the shaft; but rotative movement of the bushings is prevented, as they are clamped securely in the split bearing 61. In the cooperating bearing a bushing 67 is loosely mounted and engages the other outter 59, the end of said bushing being engaged by a nut 68 on the shaft 60 and operating to lock the two cutters in position. By substi tuting rings 62 of different width the distance which the cutters are spaced apart may be varied. The worm-gear 69 on the cuttercarrying shaft 60 meshes with a Worm 70, splined to the shaft 35 and longitudinallymovable thereon to provide for the movements-of the tool-carrying slide 18. After the slide has moved inwardly to cause the cutters to trim down the side faces of the casting said slide is moved outwardly back to its normal position by thefollowing apparatus: Securedto said slide is a bracket 71, having mounted'thereon an adjustable screw 72, carrying a spring-pressed lunger 73. (Shown in detail in Fig. 4 is the slide reaches its inward position, as shown in Fig. 6, the spring-pressed plunger'will engage the lever 46 and move it toward the right for a set-screw 74, mounted in the bracket 71,

will engage the lever 46 and move it to cause the clutch to be withdrawn from the gearwheel "22 and moved into position midway of said gear-wheel and said worm-gear. After the table has made a.quar ter of a revolution it is stopped automatically to bring the next casting into position to be operated on by the cutters 59, the movement of the tablebeing effected by the following mechanism:

Fastened to the table-carrying shaft 7 is a gear 75, having four sets of teeth and four plane portions 7 6, and cooperating with this gear is a partially-toothed gear 77, having a plane portion 78. The gear 77 is carried by a vertical shaft 79, journaled in the baseplate and top plate, as shown in Figs. 3 and 5'. Movably mounted in said gear is a" clutch-block 80, adapted to cooperate 'with .a clutch-block 81, connected to the hub 82 of a worm-gear 83, said hub being'split, as shown in F ig'. 5, to ermit it to frictionally clamp the clutch-b ock 81. meshes with a worm 84 on a horizontal shaft 85, having at its outer end a gear 86 in engagement with an idler that meshes with a gear'87, carried by the drive-shaft 12, whereby the worm-gear 83 is caused to rotate con-.

tinuously. For controlling the" movements of the clutch-block 80, carried by the gear 77 I have provided a'plunger 860, movably mounted in a bearing 870 on the base-plate and provided at one end with a roller 88, which is adapted to engage a cam-lug 89 on the upper end of said block, and thereby de- The gear 83 press said block out of engagement with the clutch-block carried by the continuouslyrotating gear 83. hen said roller is out of engagement with said cam-lug, the clutchblock is moved into engagement with the one carried by the gear 83 by means of a plurality of expansion-springs 90. The plunger carries a roller 91, which enters a gloove 92 in a block 93, fastened .to the gear 77, Whereby said plunger is actuated for moving its roller 88 into engagement with the clutchblock 80 for moving it into an inoperative position; Said plunger is moved in the opposite direction to permit said clutch-block to reengage the one carried by the gear 83 by 7 means of compressed air, which enters the cylinder 94 on the bea ing 870 through a pipe 95 and actuates the piston 96, attached to said plunger, said pipe leading from 'a valve-casings: 7, fastened to the standard 2, and having p ejecting from its end a valvestem 98, that is adapted to be actuated by a manually-operated starting-lever 99 to per- [0 mit the compressed air to enter said pipe 95 through a supply-pipe 100, leading to the casing, the construction'of the valve and casing. beingsimilar to the one shown and described in Fig. 4

As shown-in Fig. 5, the starting-lever is pivoted at its inner end to a downwardlyprojectin link 101 on the top plate and has connecte thereto a piston-rod 102, fastened to apiston 103 in a cylinder 104, attached to 2.0 the top plate, said piston having projecting 0 engagement with'the clutch-block 80 and by a-slide 18*, that is reciprocatinglfy permit said block to move into engagement with the clutch-block on the continuouslyrotating gear 83/ The starting-lever is returned to its elevated position by means of compressed air, which enters the cylinder 104 from a suitable supply-pipe 104. i The gear 77 will now start to rotate. and the teeth thereon will cooperate with one set of teeth on the gear 75 to move the table 8 one-quarter of a revolution, the plane portions of said gears then coming into engagement with each other and the cam-groove in the block 93 operating to move the plunger 88 inwardly to separate the clutch-blocks 80 and 81 and cause the'gear 77 and also the gear on the table-carrying shaft to come to rest.

After a casting has been operated on by the cutter-wheels 59 the rotating movement of the table carries it into position to be operated on by the rotating cutters 59, carried mounted on the standard 4 at the rear 0 the machine. The construction and operation of these cutters and also the slide on which they are mounted is similar to the cutters 59 on the slide 18, except that the cutters 59 rotate in a" horizontal plane for finishing the top and bottom faces of the casting, as shown inFig. 10. The vertical shaft on which the cutters are mounted, is provided with an additional cutter 59 for milling out the interior of the bifurcated end of the cas'tin Said cutte r -carrying slide is vertically 1s osed, as shown in Figs. 11,instead ofbeing orizontally disposed, as is the cutactuating these cutters and the slide 18, however, is substantially the same as that used for actuating the cutters 59 and the slide 18, and to avoid rolixitythis mechanism is not herein speoidbally described otherwise than by stating that the parts designated by reference characters'to which an a has been added are substantially the same as the parts designated by corresponding reference characters without an a. There is this slight difference, however, in the construction of these two sets of mechanism. shaft 27*, instead of carrying the beveled ear 45, is provided with a gear 27 which rives a gear 28 on a stud-shaft on which the gear 45 is mounted, as shown in Fig. 10. From the cutters 59 the casting is carried into position to have a hole drilled in its bifurcated end, the mechanism for performing this \operation being located at the righthand side of the vmachine and comprising a drill 110, carried by a stock 111, which is reciprocatingly and rotatably mounted in the arm 112 of a bearin 113, carried by the standard 5. The dril -stock is continuously rotated by means of-a beveled gear 114 on the drive-shaft 12 which meshes with a gear 115 on a vertical shaft 116, supported in the bearing 113 and havin secured to its upper end a pinion 117 meshing with a gear 118 on a shaft 119, mounted in the arm 112, said gear having connected thereto a gear 120,

which meshes with a gear121, splined to the drill-stock, as shown in Fig. 12. .Fastened to the gear 121 is a pinion 122, which meshes with a ear 124, keyed toa shaft 125, that 1s The.

ter-carrying slide 18 The mechanism for rotatab y mounted in the shaft 119, said shaft 125 carrying at its lower end a pinion 126, that meshes with a gear 127, having fastened thereto a gear 128 in engagement with a pinion 129, secured toa short shaft 130. Connected to said short shaft by means of a universal coupling 131 is a shaft 132, having a worm 133, that meshes with a gear 134 on a shaft 135, that has fastened thereto a pinion 136 in engagement with a rack-bar 137, connected to the drill-stock, said shaft 135 being journaled in a portion of the bearing 113.

From the foregoing description 1t Wlll be understood that the drill-stock rotates continuously, and when the worm 133 is in ensaid drill-stock upwardly to Withdraw the drill from the casting. The Worm 133 is moved into engagement with the gear 134 by means of an air-controlled apparatus comprising a piston 141, mounted in a cylinder 142, fastened to the support 113 and su plied with air by a pipe 143, leading to tlii valve-casing 144, secured to the top plate, as shown in=1 ig. 1, and provided with a valvestem 145, that normally occupies a position to be engaged by one of the blocks 58, carried by the rotating table. As said valvestem is depressed the compressed 'air which entersthe valve-casing from the supply-pipe 146 passes through the pipe 143 to the cylin der 142 and actuates the piston 141, the forward movement of said piston engaging a lug 147, rojecting laterally from a block 148, in

whic the end of the shaft 132 is rotatably mounted, and moving the worm 133 into engagemeht with the gear 134. Preferably the piston is provided with a yielding plunger 149, which permits the worm to yield as it engages the gear, and thus cause said gear and worm to mesh properly. The block 148 has an arm 149, which is pivotally connected to the bearing 113, as shown in dotted lines in Fig. 13, this construction controlling posi tively the swinging movement of the shaft 132. For holding the worm and gear in engagement for a predetermined time I provide a locking-dog in the form of a rock-arm 150,

fastened to the shaft 151, mounted in the support 113 and provided with a second arm 170. The a'rm150 is provided with a hook 152; which engages a cooperating hook formed on the block 148, and the arm)170 carries a leaf-spring 153, which bears against the support and holds the hooked end of the arm 150 normally elevated. Pivotally mounted-on the support is a second bellcrank lever 155, and surrounding the pivot of said lever and connected to one arm thereof is a spring 156, which at its other end is connected to a lug 157 on the block 148, said spring operating to withdraw the worm 133 from engagement with the gear 134 when the locking-dog is disengaged from the block 148. One arm of the bell-crank lever bears against the piston 141 and its other arm projects into alinement with a roller 158, carried by an arm 159, depending from a collar 160,

- removably fastenedto the drill-stock. As the arm being in contact with the arm of the lever 155 will actuate said lever for forcing the piston back into the cylinder 142, the spring 156 operating simultaneously to disengage the worm and gear, the drill-stock beings thereafter moved upwardly by the spring 139, as previously described.

The time at which the, worm 133 and gear 134 are disengaged may be varied to provide for the different thicknesses of the material movable clutch member 171, that are held normally out of engagement with each other by a coiled spring l72, as shown in Fig. 7. The movable clutch member is provided with a manually-operated Wheel 173, and pivoted to the'end of the shaft 21 is a lever 174, adapted to engage the movable clutch member 171 and force it'into engagement with the rigid clutch member 17 5. 0

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is l 1. In a machine of the class described, a work-table, mechanism for imparting an intermittent movement to said table, a plurality of tools carried by members which are arranged adjacent to the table, means cooperating with each tool-carrying -member for actuating the same to bring the tool into and out of engagement with the work on the work-table, devices for causing each of said means to become operative, air-controlled apparatus for movingsaid devices in one direction, whereby the tools are caused to move into engagement with the work, conduits for supplyin compressed air to said apparatus, valves oi controlling the passage 1 of air through said conduits, a plurality of devices on the work-table for actuating said in the opposite glirections whereby the tools are moved out o engagement with the work; substantially as described.

2. In a machine of the class described, a work-table supported by a rotatable shaft provided with a gear, a gear cooperating with the gear on the table-shaft and provided with a clutch-block, a continuouslyrotating gear provided with a cooperating clutch-block, yielding means for forcing said clutch-blocks into engagement with each other, positively-actuated means for disengaging said clutch-blocks for permitting the table to come to rest, and air-controlled apparatus for moving said means into an inoperative position to -permit said clutchblocks to reengag'e for causing movement to be imparted tothe table; substantiallyas IZS having a cooperating clutch-block, a plunger for holding said clutch-blocks disengaged, air-controlled apparatus for actuating said plunger to permit the clutch-blocks to move into engagement with each other for imparting rotary movement to the table-carrying shaft, and cam-operated means for moving said plunger into engagement with the mov-' able clutch-block after the table has been moved for a certain distance thereby causing said clutch-block to move into an inoperative position and cause the-table to come to rest; substantially as described.

4, In a machine of the class described, a

work-table carried by a rotatable shaft provided with a gear having a plurality of sets of teeth, a partially-toothed gear cooperating therewith, a block connected to said lastnamed gear and provided with a cam-groove, a movable clutch-block carried by said gear, a continuously-rotating gear provided with a cooperating clutch-block, a plunger mounted in a stationary sup ort and adapted to en gage the movable c utoh-block for holding it normally in an inoperative position, air-controlled apparatus for causing said plunger to be moved out of engagement with said movable clutch-block, a starting-lever for actuating s'aid air-controlled apparatus, a connection between the plunger and the cam-groove in said block whereby said plunger is moved into engagement with the movable clutchblock after the work-table has moved for a certain distance, and means for locking said table; substantially as described.

5. work-table carried by a rotatable shaft provided with a gear, a gear cooperating therewith and provided with a movable clutchblock, a continubusly-rotatin gear havin a cooperating clutch-block, a evice for ho ding the movable clutch-block in an inoperative position, air-controlled apparatus for actuating said device to permit the clutchblock to move' into enga ement' with the block carried by the continuously-rotating gear whereby movement is imparted to the table-carrying shaft, means for locking the table, a-starting-lever for simultaneously ace tuating the air-controlled apparatus and unlocking the-table, and automatic means for movin the device into engagement with the movab e clutch-block after the table has moved for a certain distance; substantially as described. i

6. In a machine of the class described, a rotatable Work-table, a slide carrying atool for operating u on work carried by the table, a screw-shaft or imparting a reci rocating movement to said slide, gears loose y mounted on said shaft and rotating continuously in op osite'directions, a clutch splined to said s aft and movable into and out of-engagement with said gears for causing the shaft to be rotated in opposite directions, a

In a machine of the class described, a

I shifting-lever connected to said clutch, a piston provided with means forengaging said shifting-lever, a valve-casing located 81118:

cent to the work-table and having connected operative, aplurality of tool-carrying slides mounted adjacent to said table, screw-shafts for imparting reciprocating movements to said slides, a plurality of gears loosely mounted on each screw-shaft and rotating in opposite directions, a continuously-rotating gear loosely mounted on the table-carrying shaft, connections between said gear and the gears on the screw-shafts for actuating said gears,

a clutch splined to each screw-shaft between the gears thereon, and means for moving said clutches automatically into and out of engagement with said gears for actuating the screw-shafts to move the slides first in one direction and then in an opposite direction; substantially as described. 1

8. In a'machine of the class described, a

loosely mounted on said s aft and rotating in op osite directions, a clutch splined to said s aft between said gears, a shifting-lever connected to said clutch, air-controlled apparatus for shifting said lever in one direction to cause said clutch to enga o with one of the gears whereby the screw-s aft will be actuated for moving the slide toward the work-table, means carried by said slide for shifting said lever into engagement with the.

other gear as the slide reaches its inward position, thereby causing the screwshaft to be rotated in the opposite direction for moving the slide outwardly, and means carried by table for carrying work, a tool-carrying slide, aserew-shaft for actuatin said slide, gears said slide for actuating said shifting-lever to cause the clutch to be moved midway of said gears as-said slide reaches its outward posio tion; substantially as described.

9. A machine of theclassdescribed, com

prising an intermittently-actuated Workcarrying member, a plurality of tools arran ed adjacent said work-carrying member, mec anism cooperatin with each tool for moving it toward and om the work-carrying member, devices for controlling said mechanism, a plurality of valve-casings arranged adjacent the Work-carrying member,

connections leading from said valve-casings to pistons which actuate said devices, valvereturn to normal position; substantially as stems pro ecting outwardly from said valvedescribed. casings, devices on the Work-carrying mem- In testimony whereof I hereunto affiX Iny ber for actuating said valve-stems automatsignature, in the presence of two Witnesses,

5 ically whereby the said pistons will be supthis 7th day of November, 1905.

plied with compressed air for actuating said devices in one direction to cause the tools to FRANCIS STAMBAUGH be moved toward the Work-table, and inde- Witnesses:

pendent means for actuating said devices in F. 'R. CORNWALL,

10 the opposite direction to cause the tools to GEORGE BAKEWELL. 

